微种植体支抗不同植入方法对稳定性的影响
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【摘要】目的观察自攻型与助攻型微种植体支抗的临床成功率,比较2种不同植入方法的临床稳定性。方法选择同一部位(上颌第二前磨牙和第一磨牙颊侧牙槽骨)植入微型种植体支抗病例160例,共320枚种植钉(其中自攻型微种植体30例60枚,助攻型微种植体130例260枚),分别采用自攻型及助攻型微型种植钉,植入4周后使用正畸矫治力,力值控制在400g以内,比较自攻型与助攻型种植支抗的稳定性。结果助攻型植入260枚,脱落20枚,植入成功率92.3%,自攻型植入60枚,脱落9枚,成功率85.0%,助攻型成功率高于自攻型(P <0.05)。结论助攻型微型种植体支抗植入方法临床成功率较高。
【关键词】 微种植体支抗自攻助攻稳定性
【中图分类号】 R783.5【文献标识码】 A【文章编号】 1674-0742(2011)02(c)-0055-02
【Abstract】 ObjectiveTo Comparative stability of two kinds of micro-implant by observinging clinical efects of 8entapping and self-drilling systems.Methods 130 patients treated with self-tapping MIA (micro-implant an-chorage)and 33patients treated with self-drilling MIA were included.Observing the rate of lost implants after 4 weeks.Results20 of selftappingand 9 of self-drilling implants fell of when they had been implanted for a month.ConclusionThe SUCCESS ratio ofself-tapping is higher than self-drilling ......
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